Circuit Description

When an ID code from the door electrical key oscillator LH matches an ID code from the smart key, the smart key ECU outputs a SEL1 signal (Lo when output) to the door electrical key oscillator LH, activates the touch sensor inside the outside door handle, and enters unlock standby condition. When the touch sensor is touched, the electrical key oscillator LH sends a SENS signal (Lo when output) to the smart key ECU and the smart key ECU sends an unlock signal to the driver door lock.